[Lab] Help finding a timer to control memory wire

[Michael Ayukawa]

If the times you want are very long (say minutes) … you will be susceptible to leakage through the capacitor and other paths.
Might prove to be unstable and surface at the worst of times … 
You can get a device that integrates a 555 timer with a counter.  This might be a more stable solution.


> On Mar 25, 2015, at 2:19 PM, Molly Mask <molly.emask at gmail.com> wrote:
> 
> Hi, I'm a part of an electronic media art class at Uottawa and I'm working on a project right now that involves memory wire. I'm looking for a fairly compact/simple way to control a power source to the wire without the use of an arduino. I've looked into using a battery power source for the voltage I need to activate the wire, but what I need is a timer solution that will allow me to control the activation of the wire to allow it to grow and contract and to not burn the wire out. So far I have looked at using a time delay relay and a 555timer. The 555timer seems most promising-- Is there anything else I should be aware of or look into before going down this route?  
> 
> Thanks
> 
> Molly 
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